/*
* @(#)StringUtils.java 8/19/2009
*
* Copyright 2002 - 2009 JIDE Software Inc. All rights reserved.
*/
package com.jidesoft.utils;
import com.jidesoft.range.Range;
import com.jidesoft.range.StringRange;
import java.util.List;
public class StringUtils {
/**
* Converts the supplied string to CamelCase by converting the first character to upper case and the rest of the
* string to lower case.
*
* @param str the input string
* @return a string
*/
public static String toCamelCase(String str) {
String firstLetter = str.substring(0, 1);
String rest = str.substring(1);
return firstLetter.toUpperCase() + rest.toLowerCase();
}
/**
* Constructs a list of items in a string form using a prefix and suffix to denote the start and end of the list and
* a separator string in between the items. For example, with a prefix of '(', a suffix of ')', a separator of ','
* and a list ["a", "b", "c"] it would generate the string "(a,b,c)"
*
* @param prefix the prefix for the concatenated string.
* @param suffix the suffix for the concatenated string.
* @param separator the separator between the elements.
* @param objects the array of the elements.
* @return a concatenated string of the elements in the array.
*/
public static String stringList(String prefix, String suffix, String separator, Object... objects) {
StringBuilder builder = new StringBuilder(prefix);
for (int i = 0; i < objects.length; i++) {
builder.append(objects[i].toString());
if (i < objects.length - 1) {
builder.append(separator);
}
}
builder.append(suffix);
return builder.toString();
}
public static String stringList(Object[] objects) {
return stringList("[", "]", ",", objects);
}
public static String stringList(List<?> objects) {
if (objects == null) {
return "";
}
return stringList(objects.toArray());
}
/**
* Returns the min String in the strings list.
*
* @param strings the numbers to calculate the min.
* @return the min String in the strings list.
*/
public static String min(List<String> strings) {
String min = null;
for (String value : strings) {
if (min == null || value.compareTo(min) < 0) {
min = value;
}
}
return min;
}
/**
* Returns the max String in the strings list.
*
* @param strings the numbers to calculate the max.
* @return the max String in the strings list.
*/
public static String max(List<String> strings) {
String max = null;
for (String value : strings) {
if (max == null || value.compareTo(max) > 0) {
max = value;
}
}
return max;
}
/**
* Returns the range of numbers.
*
* @param strings the numbers to calculate the range.
* @return the range of the numbers.
*/
public static Range<String> range(List<String> strings) {
String min = null;
String max = null;
for (String value : strings) {
if (max == null || value.compareTo(max) > 0) {
max = value;
}
if (min == null || value.compareTo(min) < 0) {
min = value;
}
}
return new StringRange(min, max);
}
}